Answer: Evolution is considered to be a scientific theory because evolution is not proven true of false, although it is widely recognized as true. A theory is defined as "a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained", meaning that it is the compliation of a certain ideas in hopes of proving something as true. The theory of evolution is the use of facts to try to explain how species have evolved over time. We have been unable to prove evolution as it occurs in front of us, but we can use evidence to support this theory.
The genetic diversity is the same as species diversity. True or False
Answer:
False
Explanation:
Genetic diversity is diversity among members of a species. Species diversity is the diversity of species in a particular area or region. Genetic diversity is what makes each of us different, while species diversity would be like a nationality.
Find the slope of the line thr
points.
(20, 17) and (5, -4)
Answer:
m = 7/5 [Slope]
Explanation:
The first method uses the point slope equation/formula: y - y1 = m ( x - x1 ).
Where (x1,y1) is the initial point, (x,y) is the final point), and m is the slope of that line.
Please help will mark Brainliest
Which of the following is the largest structure
in the animal cell?
A Vacuole
OB. chloroplast
C cell wall
OD nucleus
Thank you ❤️
Answer:
D. nucleus
Explanation:
The nucleus typically occupies 8% of the total cell volume.
BIOLOGY QUESTION I NEED HELP ASAP PLEASE
Answer:
I think it is D. Please let me know if I am wrong. :-)
Aerobic respiration has 3 stages: glycolysis, Kreb's cycle, electron transport
chain. What happens in each stage? How many ATP molecules made during
each stage?
What happens in each stage?
GLYCOLYSIS: "In glycolysis, glucose—a six-carbon sugar—undergoes a series of chemical transformations. In the end, it gets converted into two molecules of pyruvate, a three-carbon organic molecule. In these reactions, ATP is made, and NAD+ is converted to NADH." (Khan Academy)
KREB'S CYCLE: "This is a central driver of cellular respiration. It takes acetyl CoA—produced by the oxidation of pyruvate and originally derived from glucose—as its starting material and, in a series of redox reactions, harvests much of its bond energy in the form of NADH, FADH2, and ATP molecules. The reduced electron carriers—NADH and FADH2—generated in the TCA cycle will pass their electrons into the electron transport chain and, through oxidative phosphorylation, will generate most of the ATP produced in cellular respiration." (Khan Academy)
ELECTRON TRANSPORT: "In the electron transport chain, electrons are passed from one molecule to another, and energy released in these electron transfers is used to form an electrochemical gradient." (Khan Academy)
How many ATP molecules made during each stage?
GLYCOLYSIS: 2 ATP
KREB'S CYCLE: 2 ATP
ELECTRON TRANSPORT: 34 ATP
Khan academy is the best for breaking down processes in chemistry! I used khan all the time when I had trouble understanding chemistry last year.
Hope this helps! Please correct me if im wrong!
Explain How does DNA direct the cell's activities, such as making proteins DNA stays inside the nucleus?
Answer:
Explanation: The nucleotide sequences that make up DNA are a “code” for the cell to make hundreds of different types of proteins; it is these proteins that function to control and regulate cell growth, division, communication with other cells and most other cellular functions. ... This process is called protein synthesis.
Jackie is 84 years old. He was born on February 29, 1936. How many actual birthday’s has he celebrated? (SHOW YOUR WORK!) pls help! i will mark brainliest also :)
Answer:
Well if we wanted to be literal, people celebrate birthdays when they are actually born since that's the point of a birthday, but he's celebrated 83 if memory came into play.
Explanation:
Which of the following is not a reason we become shorter as we age?
As a person ages, vertebral bodies lose bone mass (osteoporosis) resulting in smaller vertebrae that stack closer together.
As a person ages, the ligaments connecting vertebrae together are weakened, resulting in a more pronounced kyphosis. This posterior curvature of
the spine lowers the skull, making you shorter.
As a person ages, the intervertebral discs become thinner and the vertebrae will be stacked closer together, resulting in shorter stature.
As a person ages, scoliosis may develop resulting in an abnormal spinal curvature and shorter stature.
Submit
Previous Answers Request Answer
Incorrect: Try Again: 4 attempts remaining
Answer:
The correct answer is - As a person ages, scoliosis may develop resulting in an abnormal spinal curvature and shorter stature.
Explanation:
Scoliosis is a condition in which spine curvature towards the sides takes place before the puberty during growth period or spurt normally. The cause of this condition could be muscle dystrophy or palsy and similar condition.
This affects the stature of an individual but not affected by age as it remains constant normally after development or growth till puberty. All other conditions are associated with the short stature and influenced by the age.
A cell is considered cancerous when it acquires a mutation that makes it unable to regulate its cell cycle, and as a result divides more often than a normal, healthy cell. Based on the increased energy demands of this condition, what would you expect to be true about glycolysis in cancer cells? a) Glycolysis occurs at a faster rate in healthy cells than in cancer cells. b) The rate of glycolysis is unaffected by the cancer state of a cell. c) The rate of glycolysis is higher in cancer cells than in healthy cells.
Describe the famous experiment related to gravity that Galileo may have performed. Include the results. Also, state whether the results support the law of gravity. Explain your answer.
Answer:
Galileo performed a famous experiment where he used a ball rolling on a ramp (inclined plane) to study the motion of objects under the influence of gravity. The ramp allowed him to make more precise measurements because the ball moved more slowly along the ramp than if it were simply dropped. Galileo discovered through this experiment that the objects fell with the same acceleration, proving his prediction true, while at the same time disproving Aristotle's theory of gravity (which states that objects fall at speed proportional to their mass). Galileo's conclusion from this thought experiment was that no force is needed to keep an object moving with constant velocity. Newton took this as his first law of motion. One result of the experiment surprised Galileo, and one surprises us. Galileo found that the heavy ball hit the ground first, but only by a little bit. Except for a small difference caused by air resistance, both balls reached nearly the same speed. And that surprised him. According to history, Galileo’s experiment on falling bodies largely contributed to Isaac Newton’s Law of Gravity. In Galileo’s experiment, he is said to have dropped balls from the Leaning Tower of Pisa. The balls were made of the same material but had different masses. Galileo set out to prove that the time it took for these objects to reach the ground would be the same. Galileo proved that objects reached the ground at the same time.
Explanation:
A P E X
Autotrophs, such as plants, use light to make their own food. What happens to the light absorbed by a plant during photosynthesis?
Answer:
When light energy reaches the pigment molecules, it energizes the electrons within them, and these electrons are shunted to an electron transport chain in the thylakoid membrane.
Explanation:
During photosynthesis, light absorbed by plant is used for energizing electrons for an electron transport chain to take place in thylakoid membrane.
What is photosynthesis?Photosynthesis is defined as the process by which plants and other photosynthetic organisms convert the light energy in to chemical energy through the process of cellular respiration.
Some of the energy which is converted is stored in the form of molecules of carbohydrates like sugar and starches which are made up of from carbon dioxide and water . Photosynthetic organisms which can perform photosynthesis are algae and cyanobacteria. Photosynthesis is largely responsible for producing and maintaining the percent of oxygen in earth's atmosphere.
The process begins with proteins absorbing light energy which are called reaction centers and have a green pigment which is called chlorophyll . In plants ,these pigments are present inside organelles which are called chloroplasts while in bacteria they are present in plasma membrane.
Learn more about photosynthesis,here:
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Which is a metamorphic process?
A. Lithification
B. Melting
C. Meteorite impact
D. Weathering
Melting is a metamorphic process. Thus, the correct option is C.
What is metamorphism?Increases in temperature, pressure, and chemically active fluids forms metamorphism, which transforms existent rocks into new forms. Igneous, sedimentary, and other metamorphic rocks may be affected by metamorphism.
Movements in the earth's crust pull the rock down, and it gets hotter and hotter as it goes deeper. A rock melts at temperatures between 600 and 1,300 degrees Celsius (1,200 and 2,400 degrees Fahrenheit), transforming it into magma (molten rock).
For more information regarding metamorphism, visit:
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can someone help me please
Answer:
I would defintaly start raging and go nuts! What they did was wrong because it wasn't me!
The manner in which several different ions and molecules move through a cell membrane is shown in the diagram above. For each lon or molecule, the relative concentration on each side of the
membrane is indicated. Which of the following accurately describes one of the movements taking place?
A
Glucose is transported into the cell by active transport
Subm
B
Nat is transported into the cell by active transport
с
The movement of glucose through the membrane requires ATP hydrolysis
D
Na transport out of the cell requires ATP hydrolysis
Answer:
The correct answer is - D . Na transport out of the cell requires ATP hydrolysis
Explanation:
Sodium-ion moves or transported from the inside of the cell to the outside the cell by the process called active transport. Active transport takes place takes place when the movement is against the concentration gradient to a higher concentration area through the cell membrane.
Active transport requires energy in order to transport the molecules or ions from low concentration to high concentration. In sodium-potassium pump get the energy from the hydrolysis of the ATP.
The given diagram represents the transport of sodium out of the cell using active transport. Active transport utilises the energy or ATP released during respiration. The correct answer is that sodium is transported out of the cell requires ATP.
Active transport is defined as the transport in which molecules move from lower to higher concentration, against the concentration gradient. The active transport requires the hydrolysis of energy to move across the cell. The sodium-potassium pump follows the active transport, such that:
The pumping of ions against the concentration gradient requires the addition of energy. The high-energy molecule is used to facilitate the active transport of sodium ions during the sodium-potassium pump.Therefore, the image represents the sodium is transported out of the cell by active transport.
To know more about active transport, refer to the following link:
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NEED HELP ASAP WILL GIVE BRAINLEST
Answer:
D, recessive
Explanation:
Answer:
dominate
Explanation:
dominate they both have Ff meaning that they all have a chance of being the same but also a chance of all being different but the mother and father both are Ff so i believe that it should be dominant
who likes apples lol
Answer:
meeeee
Explanation:
also mangoes mmmmm i love mangoes
What is the inputs and outputs of a nutrient cycle ?please explain
Answer:
Output of nutrients from ecosystems can also occur through surface flow of water and soil erosion. However, loss of nutrients from one ecosystem may represent input to other ecosystems. Output of organic matter from terrestrial ecosystems constitutes the majority of nutrient input into stream ecosystems.
Explanation:
How does the introduction of invasive species such as the brown tree snake upset the stability of the legal system
Answer:
Invasive species compete for the same natural resources such as food and water which the native species also need for survival.
Explanation:
Invasive species upset the stability of the ecosystem because the prey in their new environment does not have the needed defense against them. They also upset the food chain, consume so much, and overpopulate in the new territory thus causing the extinction of the native species.
The introduction of brown tree snakes in Guam disrupted the ecological system as their population increased rapidly because their preys in this new environment lacked the ability to defend themselves against the brown tree snakes. For this reason, more than twelve native birds in the Guam Islands went into extinction. They also consumed the natural resources needed for the survival of the native species.
The figure shows four stages of a telomere shortening. What is the correct sequence of stages from youngest to oldest?
A.
1, 3, 2, 4
B.
3, 2, 1, 4
C.
3, 4, 1, 2
D.
2, 1, 4, 3
Answer:a
Explanation:
Answer:
a
Explanation:
Question 13 (1 point)
The first flyby's of Jupiter were made by the Pioneer 10 & 11 spacecraft in the early 1970's.
O True
O False
Does the order of amino acids in a protein matter?
O Yes
Ο Νο
Answer:
yes it does
Explanation:
Which of the following goals is the U.S. Integrated Ocean Observing System (OOS) not intended to address?
a increase understanding of the oceans
b. improve ocean safety
c. promote ocean ownership
d. enhance the economic output of the oceans
Answer:
C. Promote ocean ownership.
Explanation:
The IOOS is a partnership between federal, regional, and private agences to:
- increase understanding of our oceans and coasts
- improve safety
- enhance the economy
From ed 2020 APES notes.
Answer:
c.
promote ocean ownership
Explanation:
Ocean Exploration
Edge 2020
Write a sentence that compares the reactants and products of photosynthesis with the reactants and products of respiration.
Answer/Explanation:
Using solar energy, photosynthesis uses carbon dioxide and water to produce glucose and oxygen, whereas respiration uses glucose and oxygen to produce energy, releasing carbon dioxide and water.
Therefore, photosynthesis and respiration act as a cycle, using reverse reactants and products.
Photosynthesis builds food for the cell to use, respiration uses this food to power cellular processes.
Write the names of all the six nutrients mentioned in the text?
how does wheel and axle work?
Answer:
The wheel and axle is a machine consisting of a wheel attached to a smaller axle so that these two parts rotate together in which a force is transferred from one to the other.
What macromolecules help to make the cell membrane
Answer: Phospholipids are the main component of a cell membrane
HOPE THIS HELPED, IF NOT SORRY. HAVE A GOOD DAY!
Suppose you do this test on a hypothetical Staphylococcus species with the antibiotics penicillin (P-10) and levoflaxacin (L-5). You record identical zone diameters of 25 mm for the levoflaxacin and penicillin disks. Which antibiotic would be more effective against this organism? What does this tell you about comparing zone diameters to each other and the importance of the zone diameter interpretive chart?
Answer:
Levoflaxacin
Explanation:
Levoflaxacin is the antibiotic which is more effective than penicillin against Staphylococcus species because Staphylococcus species are more resistance to penicillin while not resistance against levoflaxacin antibiotic, so the Levoflaxacin is more effective against Staphylococcus species of bacteria. Levoflaxacin kills about 99.9% of Staphylococcus species so we can say that it is more effective than penicillin.
The most effective antibiotic would be Levoflaxacin and this would be seen by comparing the diameter zones, which shows why the interpretation of these zones is so beneficial.
We can arrive at this answer because:
Staphylococcus is a genus of bacteria that has been resistant to penicillin since the time penicillin was discovered.In this case, when applying penicillin to a Staphylococcus culture, the bacterium can reproduce and form large zones in diameter.Staphylococcus is not resistant to Levoflaxacin and therefore it will form discs with small diameters because it will not be able to reproduce efficiently.In this case, we can state that the analysis and interpretation of the diameter zones are very important to determine the resistance of bacteria to different types of antibiotics.
More information:
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Can someone please answer
Answer:
The answer is Glucose!
What geological feature can be
created by a divergent boundary?
A. Mountain chains
B. Volcanoes
C. Earthquakes
D. Mid-ocean ridge, rift valleys
1 and 3 are the correct answers